Is it possible to overload a transformer 25% without damaging the transformer nameplate rating?
Product Line:
Transformers
Environment:
Low Power Transformers
Cause:
Verifying if it is possible to overload a transformer up to 25% without damaging the transformer nameplate rating.
Resolution:
It depends on the temperature rise. A standard 150C temperature rise Transformers have no overload capacity (OLC). 115C rise units have a 15% OLC. 80C rise units have a 30% OLC.
So the answer is No for 150C rise and 115C rise units, and Yes for 80C rise units.
Released for: Schneider Electric Canada
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